Train smarter, run faster.
Structured workouts — intervals, tempo, fartlek and long runs — with real-time GPS, heart rate and pace on iPhone and Apple Watch.
No ads, no account. Your data lives on your device — and, if you want, in your own iCloud — never on servers of ours. Want to share with Strava or anywhere else? Export to GPX and take it wherever you like. Your data, your call.
Write to us about anything: questions, problems, suggestions or feature requests. We read and answer every email.